Method for determining the inset of a progressive addition lens
US8632177B2 · kind B2 · utility
0Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | Sep 22, 2009 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Aug 30, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02C7/027
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for determining the value of the inset of a progressive addition lens according to a wearer comprising the steps of: providing convergence data, determining from the convergence data the inset of the progressive addition lens considering at least the convergence data and the prismatic effect of the progressive addition lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.